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Worksheets

Korrutamise abivalemite kordamine

Total questions: 12

Worksheet time: 8mins

Name
Class
Date
1.

Milline on ruutude vahe valem?

a)

a2 - b2 = (a-b)(a+b)

b)

a2 - b2 = (a+b)(a-b)

c)

a2 - b2 = (a-b)(a-b)

d)

a2 - b2 = (a-b)2

e)

Ruutude vahe leidmiseks ei olegi valemit.

2.

Milline on ruutude summa valem?

a)

a2 - b2 = (a-b)(a+b)

b)

a2 + b2 = (a+b)(a-b)

c)

a2 + b2 = (a-b)(a-b)

d)

a2 + b2 = (a+b)2

e)

Ruutude summa leidmiseks ei olegi valemit.

3.

Milline on summa ruudu valem?

a)

a2 + b2 = (a+b)(a+b)

b)

a2 + b2 = (a+b)(a+b)

c)

a2 + b2 = (a-b)(a-b)

d)

(a+b)2 = a2 + 2ab + b2

e)

(a+b)2 = a2 + b2

4.

Milline on vahe ruudu valem?

a)

a2 - b2 = (a+b)(a+b)

b)

a2 - b2 = (a+b)(a+b)

c)

(a-b)2 = a2 - 2ab - b2

d)

(a-b)2 = a2 - 2ab + b2

e)

(a-b)2 = a2 - b2

5.

Leia õiged võrdused.

a)

a2 - b2 = (a-b)(a+b)

b)

a2 - b2 = (a-b)(a+b)

c)

(a-b)2 = a2 - 2ab - b2

d)

(a-b)2 = a2 - 2ab + b2

e)

(a-b)2 = (a - b)(a-b)

6.

Leia õiged võrdused.

a)

a2 + b2 = (a+b)(a+b)

b)

a2 - b2 = (a-b)(b+a)

c)

(a-b)2 = a2 - 2ab - b2

d)

(a+b)2 = a2 + 2ab + b2

e)

(a+b)2 = (a + b)(b+a)

7.

Leia õiged võrdused.

a)

a2 + b2 = (a+b)(a+b)

b)

a2 - b2 = (b+a)(b-a)

c)

a2 + 2ab + b2 = (a+b )2

d)

(a-b)2 = a2 - b2

e)

(a+b)2 = (a + b)(b+a)

8.

Leia õiged võrdused.

a)

a2 - 4c2 = (a+2c)(a+2c)

b)

a2 - 4c2 = (a+2c)(a-2c)

c)

a2 + 4ac + c2 = (a+2c )2

d)

(u-v)2 = u2 - v2

e)

(u+v)2 = (u + v)(u+v)

9.

Millised avaldised on õigesti tegurdatud?

a)

a2 - 4c2 = (a+2c)(a+2c)

b)

a2 - 4c2 = (a-2c)(a+2c)

c)

a2 + 4ac + 4c2 = (a+2c)2

d)

4u-8uv = 4u(1 - 2v)

e)

(u+v)2 = (u + v)(u+v)

10.

Millised avaldised on õigesti tegurdatud?

a)

4a2 - 4a2c2 = 4a2( - c2)

b)

4a2 - 4a2c2 = 4a2( 1 - c2)

c)

4a2 - 4a2c2 = 4a2( 1 - c)( 1 - c)

d)

4a2 - 4a2c2 = 4a2( 1 - c)( 1 + c)

e)

4a2 - 4a2c2 = 4a2( 1 - c2)= 4a2( 1 - c)( 1 + c)

11.

Millised avaldised on õigesti tegurdatud?

a)

9x2+6x+1=(3x+1)2

b)

z2-8zs+16s2=(z-4s)2

c)

2x2 - 40y2 = 2( x2-20y2)

d)

4a2 - 4a2c2 = 4a2( 1 - c)( 1 + c)

e)

4a2 - 4a2c2 = 4a2( 1 - c2)= 4a2( 1 - c)( 1 + c)

12.

Korrutises (a+b)(a+b) peitub

a)

ruutude summa

b)

summa ruut